6.2.4 Ensure no legacy '+' entries exist in /etc/group

Information

The character + in various files used to be markers for systems to insert data from NIS maps at a certain point in a system configuration file. These entries are no longer required on most systems, but may exist in files that have been imported from other platforms.

Rationale:

These entries may provide an avenue for attackers to gain privileged access on the system.

Solution

Remove any legacy '+' entries from /etc/group if they exist.

See Also

https://workbench.cisecurity.org/files/2619

Item Details

Category: IDENTIFICATION AND AUTHENTICATION

References: 800-53|IA-2, CSCv7|16.2

Plugin: Unix

Control ID: ce8cf67085682570ce3cd3db776b7d0db0cb0a21908630ad909d94754d4dcebd